docs: def get_page_template(self, **kwargs):
          """Return the template name used for this request.
  
          Only called if *page_template* is not given as a kwarg of
          *self.as_view*.
          """
          opts = self.object_list.model._meta
          return '{0}/{1}{2}{3}.html'.format(
              opts.app_label,
              opts.object_name.lower(),
              self.template_name_suffix,
              self.page_template_suffix,
          )